Load Specifications
Load data in caliber 6 mm GT with .243 | 85gr | MEN SPBT bullet and 90 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and ReloadSwiss RS 60.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 53,229 psi | 86% | 2982 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 55,288 psi | 89% | 3054 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 54,041 psi | 87% | 3041 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 53,098 psi | 86% | 3058 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 54,041 psi | 87% | 3087 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 45,861 psi | 74% | 3009 fps | 96.4% |
| Accurate LT-30 | <<locked>> | 82% | 53,229 psi | 86% | 2930 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 53,606 psi | 86% | 2953 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 55,579 psi | 90% | 3117 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 96% | 53,403 psi | 86% | 3058 fps | 98.3% |
| ADI AR 2219 | <<locked>> | 82% | 53,519 psi | 86% | 3051 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 55,056 psi | 89% | 3077 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 90% | 54,752 psi | 88% | 3064 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 52,736 psi | 85% | 3127 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 55,419 psi | 89% | 3232 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 56,043 psi | 90% | 3133 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 84% | 53,287 psi | 86% | 2999 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 53,490 psi | 86% | 3100 fps | 98.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,093 psi | 74% | 3022 fps | 96.5% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 53,388 psi | 86% | 3192 fps | 99.4% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 55,521 psi | 90% | 2969 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 55,840 psi | 90% | 3133 fps | 98.4% |
| Bofors RP3 | <<locked>> | 96% | 52,750 psi | 85% | 3091 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 88% | 53,679 psi | 87% | 3009 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 90% | 54,012 psi | 87% | 3104 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 88% | 55,666 psi | 90% | 3202 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 86% | 55,956 psi | 90% | 3087 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 53,316 psi | 86% | 3054 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 54,433 psi | 88% | 3100 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 92% | 56,043 psi | 90% | 3130 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,959 psi | 68% | 2894 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 55,201 psi | 89% | 3163 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,490 psi | 56% | 1886 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 54,172 psi | 87% | 3081 fps | 99.3% |
| IMR 3031 | <<locked>> | 92% | 55,477 psi | 89% | 3127 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 53,011 psi | 86% | 3045 fps | 98.5% |
| IMR 4198 | <<locked>> | 84% | 53,534 psi | 86% | 2956 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,048 psi | 71% | 2953 fps | 96% |
| IMR 4895 | <<locked>> | 94% | 54,795 psi | 88% | 3136 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 90% | 55,056 psi | 89% | 3077 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 86% | 55,129 psi | 89% | 3061 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 92% | 55,013 psi | 89% | 3100 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 55,956 psi | 90% | 3048 fps | 99.2% |
| Lovex S062 | <<locked>> | 96% | 55,738 psi | 90% | 3097 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 51,285 psi | 83% | 3015 fps | 96.1% |
| Norma 201 | <<locked>> | 92% | 54,520 psi | 88% | 3064 fps | 99.7% |
| Norma 202 | <<locked>> | 92% | 54,940 psi | 89% | 3077 fps | 100% |
| Norma 203B | <<locked>> | 96% | 55,811 psi | 90% | 3140 fps | 99.2% |
| Norma URPᴾ | <<locked>> | 100% | 45,919 psi | 74% | 3005 fps | 96.3% |
| Ramshot Big Game | <<locked>> | 94% | 53,011 psi | 86% | 3110 fps | 98.7% |
| Ramshot TAC | <<locked>> | 90% | 55,680 psi | 90% | 3081 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 90% | 54,853 psi | 88% | 3107 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 86% | 53,127 psi | 86% | 3022 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,998 psi | 56% | 1936 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 54,665 psi | 88% | 3061 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 55,288 psi | 89% | 3081 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 53,316 psi | 86% | 3169 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 53,171 psi | 86% | 3205 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 45,788 psi | 74% | 3025 fps | 96% |
| Rottweil R 901 | <<locked>> | 90% | 55,434 psi | 89% | 3054 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 54,708 psi | 88% | 3058 fps | 99.7% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 55,999 psi | 90% | 3133 fps | 99.6% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 51,285 psi | 83% | 3015 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 92% | 55,013 psi | 89% | 3100 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 55,738 psi | 90% | 3097 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 54,752 psi | 88% | 3028 fps | 99.5% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 53,954 psi | 87% | 3058 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 54,607 psi | 88% | 3146 fps | 99% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 53,838 psi | 87% | 3015 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 53,505 psi | 86% | 3048 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 54,375 psi | 88% | 3087 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 53,417 psi | 86% | 2966 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 52,982 psi | 85% | 2959 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 52,620 psi | 85% | 3051 fps | 99.6% |
| Somchem S335 | <<locked>> | 92% | 55,680 psi | 90% | 3012 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 52,939 psi | 85% | 3045 fps | 98.7% |
| Somchem S355 | <<locked>> | 98% | 53,287 psi | 86% | 3081 fps | 99.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,901 psi | 66% | 2946 fps | 98.3% |
| Vihtavuori N130 | <<locked>> | 86% | 52,924 psi | 85% | 2936 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 53,403 psi | 86% | 2956 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 53,954 psi | 87% | 3035 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 55,332 psi | 89% | 3051 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 54,795 psi | 88% | 3061 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 48,414 psi | 78% | 3009 fps | 96.7% |
| Vihtavuori N530 | <<locked>> | 90% | 55,912 psi | 90% | 3081 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 94% | 53,374 psi | 86% | 3041 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,471 psi | 77% | 3009 fps | 96.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 50,009 psi | 81% | 3002 fps | 98.9% |
| Winchester 748 | <<locked>> | 90% | 55,042 psi | 89% | 3127 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 53,795 psi | 87% | 3094 fps | 99.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 41,365 psi | 67% | 2779 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 45,034 psi | 73% | 2884 fps | 99.7% |
| Accurate 2495 | <<locked>> | 80% | 34,026 psi | 55% | 2677 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 40,437 psi | 65% | 2831 fps | 99% |
| Accurate 4064 | <<locked>> | 80% | 32,155 psi | 52% | 2651 fps | 98% |
| Accurate 4350 | <<locked>> | 98% | 42,902 psi | 69% | 2949 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 49,748 psi | 80% | 2874 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,053 psi | 81% | 2897 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 37,971 psi | 61% | 2769 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 86% | 39,044 psi | 63% | 2776 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 49,893 psi | 80% | 2992 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,987 psi | 64% | 2792 fps | 97.4% |
| Alliant AR-Comp | <<locked>> | 80% | 39,189 psi | 63% | 2812 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,166 psi | 74% | 3005 fps | 98.2% |
| Alliant Power Pro 2000-MR | 34.3 gr | 86% | 42,148 psi | 68% | 2963 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 33,605 psi | 54% | 2684 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,166 psi | 76% | 2897 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 38,638 psi | 62% | 2805 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 98% | 43,091 psi | 70% | 2956 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 90% | 37,927 psi | 61% | 2864 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,863 psi | 79% | 2867 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 42,293 psi | 68% | 2884 fps | 95.5% |
| Bofors RP3 | <<locked>> | 84% | 35,317 psi | 57% | 2740 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,235 psi | 68% | 2799 fps | 98.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,276 psi | 62% | 2805 fps | 97.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,800 psi | 67% | 2936 fps | 96% |
| Hodgdon H322 | <<locked>> | 80% | 45,672 psi | 74% | 2920 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 46,557 psi | 75% | 2940 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 44,570 psi | 72% | 2920 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 38,232 psi | 62% | 2785 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 37,159 psi | 60% | 2782 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,418 psi | 56% | 2740 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,657 psi | 41% | 1690 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,811 psi | 59% | 2733 fps | 95.6% |
| IMR 3031 | <<locked>> | 80% | 37,101 psi | 60% | 2799 fps | 99.8% |
| IMR 4064 | <<locked>> | 84% | 38,566 psi | 62% | 2759 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 47,747 psi | 77% | 2867 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 41,031 psi | 66% | 2890 fps | 95.1% |
| IMR 4895 | <<locked>> | 82% | 37,217 psi | 60% | 2785 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 39,987 psi | 64% | 2792 fps | 97.4% |
| Lovex D073.5 | <<locked>> | 80% | 44,875 psi | 72% | 2884 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 80% | 36,593 psi | 59% | 2756 fps | 98.2% |
| Lovex S060 | <<locked>> | 80% | 38,783 psi | 63% | 2720 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 33,605 psi | 54% | 2651 fps | 95.5% |
| Lovex S065 | <<locked>> | 98% | 48,399 psi | 78% | 2963 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 37,420 psi | 60% | 2733 fps | 96.8% |
| Norma 202 | <<locked>> | 80% | 37,565 psi | 61% | 2753 fps | 98.9% |
| Norma 203B | <<locked>> | 84% | 37,956 psi | 61% | 2795 fps | 95.5% |
| Norma URP | <<locked>> | 98% | 43,207 psi | 70% | 2946 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 84% | 37,724 psi | 61% | 2805 fps | 95.1% |
| Ramshot TAC | <<locked>> | 86% | 48,863 psi | 79% | 2963 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,146 psi | 63% | 2805 fps | 95.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,656 psi | 70% | 2848 fps | 96.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,875 psi | 42% | 1729 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,933 psi | 72% | 2894 fps | 99.4% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 51,677 psi | 83% | 3018 fps | 95.3% |
| ReloadSwiss RS 52 | 32.5 gr | 84% | 40,350 psi | 65% | 2917 fps | 95.6% |
| ReloadSwiss RS 60 | 32.2 gr | 82% | 31,169 psi | 50% | 2687 fps | 95.4% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 42,685 psi | 69% | 2963 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 40,944 psi | 66% | 2792 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 80% | 35,665 psi | 58% | 2684 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 86% | 35,244 psi | 57% | 2730 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 98% | 48,399 psi | 78% | 2963 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,593 psi | 59% | 2756 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 33,605 psi | 54% | 2651 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,718 psi | 77% | 2910 fps | 98.7% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 50,444 psi | 81% | 3002 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 39,189 psi | 63% | 2844 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,558 psi | 77% | 2913 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 46,644 psi | 75% | 2930 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 39,204 psi | 63% | 2795 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,957 psi | 63% | 2703 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,966 psi | 52% | 2552 fps | 98.4% |
| Somchem S321 | <<locked>> | 80% | 43,004 psi | 69% | 2877 fps | 98.4% |
| Somchem S335 | <<locked>> | 80% | 38,537 psi | 62% | 2710 fps | 99.5% |
| Somchem S341 | <<locked>> | 80% | 37,623 psi | 61% | 2746 fps | 95.2% |
| Somchem S355 | <<locked>> | 86% | 36,506 psi | 59% | 2746 fps | 95.6% |
| Somchem S365 | <<locked>> | 94% | 33,823 psi | 55% | 2766 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 44,179 psi | 71% | 2795 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,059 psi | 63% | 2710 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,301 psi | 55% | 2677 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 80% | 35,302 psi | 57% | 2680 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 84% | 32,532 psi | 52% | 2625 fps | 95.8% |
| Vihtavuori N160 | <<locked>> | 96% | 42,511 psi | 69% | 2890 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 40,118 psi | 65% | 2792 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 80% | 34,069 psi | 55% | 2661 fps | 98% |
| Vihtavuori N550 | <<locked>> | 98% | 44,672 psi | 72% | 2956 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 35,665 psi | 58% | 2700 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 38,812 psi | 63% | 2825 fps | 98% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,926 psi | 58% | 2736 fps | 95.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 90 powders for 6 mm GT loaded with the .243 | 85gr | MEN SPBT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,232 fps; across all powders the maximum-charge window runs from 1,886 fps to 3,232 fps. Accurate 4350 gives the best case fill at 100 %, and 90 of the 90 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (427 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 85.0 gr projectile in 0.243" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant Power Pro 2000-MR, ReloadSwiss RS 52, ReloadSwiss RS 60 rank at the top here: for 6 mm GT with the .243 | 85gr | MEN SPBT they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.